php check one array against another for all matches

Question

I have two arrays that list people, and I'm trying to figure out which people are in both arrays.

$employees = Array("bob", "john", "jerry", "mike");
$homies = Array("bob", "john", "arnold");

I basically need to know which dudes are both employees and homies (in this case, bob and john) so that I have a new array:

$employees_and_homies = Array("bob", "john");

I looked at like a dozen other questions on here, but I'm lost and nothings working for this particular case.

Answer 1

array_intersect():

$employees_and_homies = array_intersect($employees, $homies);

Answer 2

print_r(array_intersect ($employees, $homies));

@Ref : http://in1.php.net/array_intersect